本文介紹了CAN總線的特性，并吸取當(dāng)今先進的電站設(shè)計思想，在分析相關(guān)技術(shù)文獻、資料的基礎(chǔ)上，利用先進的嵌入式控制技術(shù)，PLC技術(shù)及現(xiàn)場總線通信技術(shù)等進行系統(tǒng)設(shè)計，給出了一種基于CAN總線的水電站自動化監(jiān)控系統(tǒng)。與傳統(tǒng)的水電站自動化監(jiān)控系統(tǒng)相比，該方法改傳統(tǒng)方法中將現(xiàn)場綜合電量裝置、保護裝置及溫度巡檢裝置通過RS485總線接到工控機上為將這些裝置與PCC相連，通過PCC聯(lián)到上位監(jiān)控系統(tǒng)，使得整個現(xiàn)地單元自成一個獨立的系統(tǒng)層次。增加了系統(tǒng)的穩(wěn)定性和可靠性。避免了系統(tǒng)數(shù)據(jù)的丟失，同時簡化了系統(tǒng)的結(jié)構(gòu)，節(jié)約了系統(tǒng)硬件成本，更加利于資金不足的地區(qū)自建小型水電站。
關(guān)鍵詞： CAN PLC PCC 現(xiàn)場總線 水電站自動化
Abstract: A hydraulic power plant automatic monitor system based on CAN_ us is proposed in this paper. The system connects the field comprehensive electric parameter device, the protection device and the temperature-inspection device with PCC, rather than through RS485 with the industrial control computer. This approach makes the whole field unit integrated a self-governed system hierarchy, improves the stability and reliability of the system ,avoids the lose of system data, simplifies the structure of the system, and saves the cost of hardwares.
Keywords: CAN PLC PCC Field bus Hydraulic Power Plant Automation